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AEB-43 Norma 43 — Parser and import status

Norma 43 (AEB-43) is the Spanish standard for exchanging bank statements between banks and management software. Spanish banks export it as a fixed-width text file with 80-character records.

Norma 43 import from the Frihet interface is not available

Today you can import statements in OFX, QFX, MT940, CAMT.053 and CSV from Finance → Banking → Import Statement; see Bank connections. The @frihet/aeb43-parser library (v0.1.0) is available for your own integrations and scripts.

Parser @frihet/aeb43-parser​

For your own integrations or migration scripts, you can use the parser published on npm:

npm install @frihet/aeb43-parser
import { parseAEB43 } from '@frihet/aeb43-parser';
import { readFileSync } from 'fs';

const raw = readFileSync('extracto.n43', 'latin1'); // Norma 43 uses ISO-8859-1
const statement = parseAEB43(raw);

for (const account of statement.accounts) {
  console.log(account.accountId, account.openingBalance, account.closingBalance);
  for (const tx of account.transactions) {
    console.log(tx.operationDate, tx.amount, tx.description);
  }
}

parseAEB43 returns an AEB43Statement with these fields:

  • AEB43Statement: accountCount, totalRecords and accounts (one entry per account in the file).
  • AEB43Account: entityCode, branchCode, accountNumber, accountId, startDate, endDate, openingBalance, closingBalance, totalDebits, totalCredits, debitCount, creditCount and transactions.
  • AEB43Transaction: operationDate, valueDate, amount (debit negative, credit positive), conceptCode, description, additionalDescription, reference1, reference2 and rawLine.

For a malformed file, the parser throws AEB43ParseError. The isAEB43(content, fileName?) function tells you whether a file looks like Norma 43.

Important: encoding​

Norma 43 files use ISO-8859-1 (Latin-1) encoding, not UTF-8. If you read the file manually, specify 'latin1' as the encoding.

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